Raised in Englewood, New Jersey, Martinez attended Academies at Englewood,[1] also playing club soccer with the New York Red Bulls Academy[2] and winning the National Championship with PDA Academy in 2013.[3]
In 2014, Martinez attended Iona College to play college soccer. He played one season with the Gaels, making 18 appearances and scoring a goal, earning an All-MAAC Rookie Team selection.[3] In 2016, Martinez transferred to the University of Massachusetts Lowell where he made 40 appearances and tallied one assist for the River Hawks.[1]
While at college, Martinez appeared in the USL PDL, later rebranded as USL League Two, in 2016 and 2018. In 2016, he made 11 appearances for Lehigh Valley United[4] and played in three games for the Boston Bolts in 2018.[5]